Video Quality Checker - Enhance Your Web Conferencing Experience
Nothing sucks like a poor quality video. For most people, especially when collaborating in a project or web conferencing, blurry and low-resolution videos are unwelcome. As such, checking the quality of your video before sharing would save you a lot of trouble.
Perhaps you may ask: what compromises the quality of your video? Before a video arrives into your computer, laptop or phone, it goes through several stages, namely: captured via a camera or webcam, it’s then edited, and the edited video is then compressed before it is transmitted. In each stage, the quality of your video gets compromised.
The good news is that video errors resulting from camera optics and resolution as well as editing effects can be eliminated by using a video quality checker.
What is a video quality check?
Video quality check is the analysis of different video specifications to check for variances between the compressed images from the original ones. Video quality check can be manual/human visual or automatic. It can also be objective or subjective. Subjective video quality checking makes use of human observers (Video Mean Opinion Score) to rate the quality of a video while objective video quality checking uses a statistical model to measure the quality of a video.
Video quality check is done to:
- assess original and compressed images, and determine the variance between the two
- calculate the quality features of a video processing system
- test video speed
Examples of objective video quality checker include:
- Video Multimethod Assessment Fusion (VMAF)
- Structural similarity (SSIM)
- MOtion-tuned Video Integrity Evaluation (MOVIE) index
- PEVQ (Perceptual Evaluation of Video Quality)
- Quad-HD (Objective perceptual multimedia video quality measurement of HDTV)
- Visual Information Fidelity (VIF)
How does a Video Quality Checker work?
Objective video quality checker uses test video speed and other signals such as file size, video resolution, pixel format, display aspect ratio, coded aspect ratio, noise detection, dead pixel detection, brightness, contrast, bytes per frame, audio level, color bars and circles to calculate the system’s frequency response.
Here are four simple steps of how to do your Video Quality Check:
- Right click your video file
- Select ‘Get Info’
- Look for ‘Dimensions’
- Determine if it's HD quality or not:
- A video with 1920x1080 resolutions (1080pixels) is Full HD,
- A video with 1280x720 resolutions (720pixels) is normal HD,
- A video with 720x480 resolutions (480pixels) is below HD, but still standard definition (SD) quality.
- A video below 480pixels is considered poor quality and should not be used.
A good video quality checker must:
- Be fast, accurate and simple to configure
- Be able to do efficient iterative analysis
- Be able to do a parallel analysis of multiple simultaneous sources
- Support digital dropouts, dead pixel detection, and other unique parameters
- Permit analysis of videos straight from the source URL
- Have easy to understand API for smooth incorporation in third-party applications
- Have clustering and sectional architecture for easy load balancing
- Have a cloud-ready web-based software to allow local and remote use
- Support HEVC for compressed 4K content and other common standard formats
- Be able to do EBU R128 and other loudness analyses
- Have closed caption detection
- Be PhotoSensitive Epilepsy compliant to OFCOM recommendations
- Have improved syntax error detection
- Be able to do a detailed analysis of contents with a waveform or frame detailed view
- Store measured parameter values
- Have the ability to report time codes and frame references
- Have UNICODE support for extended character sets
What happens if your video resolution isn't up to par?
Video resolution is the number of distinct pixels that could be revealed in each dimension. It is usually quoted as width× height, e.g. “720 × 480″. There are two types of video resolutions: standard definition (SD) and high definition (HD). When your video resolution isn’t up to par, for example when you want to upload a mobile phone-captured video into your laptop, you will need to increase the resolution using conversion software that lets you change video resolution easily.
Companies like 8x8 have platforms that consolidate multiple apps for video conferencing, team messaging, and telephony into one. These platforms have in-built video resolution conversion capabilities. This eliminates the need to acquire separate video conversion software.
Increasing or decreasing a video resolution does not change the video quality.
Collaboration is key to the success of any business. Web conferencing is one of the strategies of achieving collaboration across teams. There is no bad experience as struggling to watch a low-quality video during a web conference.
Invest in a high video quality web conferencing platform that will enable you to easily collaborate from anywhere on any device using the most integrated video and audio conferencing with HD quality and instant screen sharing. For inquiries about the 8x8 web conferencing platform, call 1-866-879-8647 to request a no-obligation quote from an 8x8 product specialist.